12. The view V. or distance, In miles that one can see to the horizon from a height h, in feet, is given by A. Find the rate of change of V with respect to h. B. How for can one see to the horizon from an airplane window from the belght of 40,000 17 C. How far can one see a ship from the top of a 325 fl. light house? 13. A company has a fixed cost of $30,000 and a production cost of $6 for each unit it manufacturers, A unit sells for $10. A. What is the cost function? B. What is the revenue function? C. What is the profit function? D. Compute the profit (loss) corresponding to production levels for the following units of production: b. 8.000 c. 12.010 14, For the problem above, determine the "break-even" point in production. What is an appropriate "viewing window" to understand the graph of this problem? "Extra credit If you am explain your rationale for choosing this viewing window - "because if works" does not count as an answer! 15. Epidemiologists in College Station, Texas estimate that f days after the flu begins to spread In the town, the percent of the population infected by the flu is approximated by: pigjuror for osr. 1. Find the average rate of change of p with respect to r over the interval from I to 4 b. Find and interpret the instantaneous rate of change of p with respect to rot r-3